JP2004244938A - Hollow material unit and installation method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hollow material unit, which can be easily installed in a slab form without requiring much labor, and an installation method therefor. <P>SOLUTION: In this hollow material unit 1, lattice-shaped or linear tie rods 4, which are placed on the top parts of hollow materials 2 arranged at proper intervals in longitudinal and lateral directions, are mounted by means of embedded anchors 3 whose lower parts are stuck into the hollow materials 2, and backward protrusions 8 for preventing a disconnection are provided in the lower part of the embedded anchor 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hollow material unit and an installation method thereof.
[0002]
[Prior art]
As a conventional hollow material, there is an invention of JP-A-2002-266457. In this method, a hollow material is placed between the upper and lower end bars of the slab and restrained by auxiliary bars arranged vertically. As a method for installing the hollow material unit, there is an invention of Japanese Patent Application No. 2002-136777. In this method, the hollow material is unitized and installed between the upper and lower bar of the slab.
[0003]
[Patent Document 1]
JP 2002-266457 (FIG. 1)
[0004]
[Problems to be solved by the invention]
The above hollow material had the advantage that it could be laid after arranging the lower end bars, but for that purpose, it was necessary to install auxiliary bars that restrain the lower part of the hollow material, and in order to install the hollow materials individually There was a problem that it took time and effort.
Further, the above-described installation method of the hollow material unit has a problem that the upper end reinforcement cannot be arranged unless the hollow material unit is installed because the upper end reinforcement is arranged after the installation of the hollow material unit.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a hollow material unit that can be easily installed in a slab mold without trouble, and an installation method thereof.
[0006]
[Means for Solving the Problems]
A hollow material unit for solving the above problems is an embedded anchor in which a lattice-like or linear connecting material placed on the top of a hollow material arranged at appropriate intervals in the vertical and horizontal directions, and the lower part is inserted into the hollow material. And is provided with a return stopper at the bottom of the embedded anchor.
In addition, the hollow material unit includes a lattice-like or linear connecting material placed on the top of the hollow material arranged at appropriate intervals in the vertical and horizontal directions, and is bound to a reinforcing plate embedded in the hollow material with a binding wire. This is a fixed configuration.
Further, the hollow material unit is a hollow material in which lattice-like or linear connecting materials installed on the upper surface and the lower surface of the hollow material arranged at appropriate intervals in the vertical and horizontal directions are bound by a binding wire penetrating the hollow material. This is a fixed configuration.
The hollow material includes a capsule shape or a spherical shape, and the connecting material includes a welded wire mesh.
[0007]
In addition, the hollow material unit is installed in a unitary manner by a lattice-like or linear connecting material in which the hollow materials arranged at appropriate intervals in the vertical and horizontal directions are installed on the top, and a protrusion protruding from the lower side surface. The hollow material unit formed in this manner is pushed into the lattice portion of the upper end reinforcement arranged in the slab form, and is installed between the upper and lower end reinforcements while the projection is deformed by the upper end reinforcement. Further, the projection includes that the projection is cut up and down at the central portion, and the projection is formed integrally, and includes that a cut for cutting is provided in the central portion.
[0008]
In the formation of the hollow material unit, the connecting material is easily attached to the hollow material with an embedded anchor or a binding wire. Further, even after the grid-like upper and lower bars are arranged in the slab formwork, the hollow material unit can be pushed in between the grid parts of the upper bar and installed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a hollow material unit and an installation method thereof according to the present invention will be described with reference to the drawings. There are four embodiments of the hollow material unit and two embodiments of the installation method of the hollow material unit. In each embodiment, the same components are described with the same reference numerals and different. Only the components will be described with different reference numerals.
[0010]
FIG. 1 shows a hollow material unit 1 according to the first embodiment. The hollow material unit 1 is configured by connecting hollow materials 2 installed at appropriate intervals in the vertical and horizontal directions by a connecting material 4, and the connecting material 4 is fixed to the top portion by an embedded anchor 3.
[0011]
As shown in (2) of the figure, the hollow material 2 has a hollow capsule shape formed of a foam material, and projections 5 that maintain a constant distance from the adjacent hollow material on the lower four side surfaces. Is protruding. Further, a flat cross-shaped fitting groove 6 is formed at the top of the hollow material 2, and a crossing portion 7 of the connecting material is fitted therein, and the embedded anchor 3 is installed so as to straddle this.
[0012]
The embedded anchor 3 is formed in a U-shape with both ends being shifted from each other, and a retaining bar 8 is provided on the lower side. Therefore, the embedded anchor 3 can be easily inserted into the hollow material 2 and is not easily pulled out after being inserted. Further, the connecting material 4 is a welded wire mesh in which the vertical bars 4a and the horizontal bars 4b are welded in a lattice shape.
[0013]
In addition, the embedded anchor 3 can be attached not to the crossing portion 7 of the connecting material but to a place slightly apart from the crossing portion 7 as shown in FIG. Be able to.
[0014]
FIG. 3 shows the hollow material unit 9 of the second embodiment. This hollow material unit 9 is obtained by binding the upper and lower connecting members 4 of the hollow member 2 with binding wires 11 wired in the through-holes 10 of the hollow member. Otherwise, the hollow member of the first embodiment. The configuration is the same as that of the unit 1. The hollow member 2 does not have the protrusion 5, but may be the hollow member 2 connected by the integrally formed protrusion 5.
[0015]
FIG. 4 shows a method of attaching the connecting material 4 to the hollow material 2. First, as shown to (1) of the figure, it attaches to the cross | intersection part 7 of the lower joining material 4 in the state which orient | assigned the binding wire 11 to the upper side. Next, as shown in (2) of the figure, the lower connecting member 4 is fitted into the lower fitting groove 12 of the hollow member 2 so that the binding wire 11 is inserted into the through hole 10 of the hollow member. Then, the upper end portion of the binding wire 11 protrudes from the upper portion of the through hole 10. Next, when the upper connecting member 4 is fitted into the upper fitting groove 6 of the hollow member 2 and the bundle wire 11 is bound to the intersecting portion 7, the upper and lower connecting members 4 are attached to the hollow member 2.
[0016]
FIG. 5 shows the hollow material unit 13 of the third embodiment. In this hollow material unit 13, the connecting material 4 at the top of the hollow material 2 is formed by binding the reinforcing plate 15 in the upper hollow material 14 with a binding wire 16. Otherwise, the hollow material unit 13 is the same as the first hollow material unit 1. It is a configuration. The reinforcing plate 15 prevents the upper hollow member 14 from being broken, and the lower hollow member 17 is fitted into the upper hollow member 14 to form the hollow member 2.
[0017]
FIG. 6 shows the hollow material unit 18 of the fourth embodiment. The hollow material unit 13 is formed by linearly connecting the connecting material 4 at the top of the hollow material 2, and the other configuration is the same as that of the first hollow material unit 1. The linear connecting material 4 may be plural, and can be applied to the hollow material units 9 and 13 of the second and third embodiments.
[0018]
In addition, all the hollow materials 2 of the hollow material units 1, 9, and 13 in the above embodiment are capsule-shaped, but may be spherical or flat spherical.
[0019]
Next, the installation method of a hollow material unit is demonstrated. FIG. 7 shows the installation method of the first embodiment, in which the hollow material unit 1 of the first embodiment is installed in a slab formwork.
[0020]
First, as shown in FIG. 7, an upper end bar 20 a and a lower end bar 20 b are arranged in the slab form frame 19, and an installation space 22 is formed by a spacer 21 therebetween. The upper end bars 20a and the lower end bars 20b have a lattice shape, and the lattice portions 23 are formed in a size that allows the hollow material 2 to be pushed in.
[0021]
In the state where the upper bar 20a and the lower bar 20b are arranged in this manner, as shown in (2) of the figure, the hollow member 2 is put into the lattice portion 23 and the hollow member unit 1 is pressed downward. Then, the projection 5 is caught by the upper end muscle 20a.
[0022]
Next, as shown in (3) of the figure, when the hollow material unit 1 is further pressed downward, the protrusion 5 is deformed and the hollow material unit 1 is installed in the installation space 22. Since this hollow material unit 1 is in a state of being hooked on the upper end reinforcement 20a by the connecting member 4, it is bound to the upper end reinforcement 20a by a binding line.
[0023]
FIG. 8 shows the installation method of the second embodiment, and uses a hollow material unit 25 in which the hollow material 2 is connected by an integral protrusion 24. The hollow material unit 25 is provided with a notch 26 at the lower center portion of the protrusion 24, and the protrusion 24 is cut from the notch 26 by the downward pushing force applied to the hollow material unit 25, so that The installation is facilitated, and other than this, the configuration is the same as the installation method of the first embodiment, and the same effects are achieved. The notch 26 may be provided above the integral protrusion 24.
[0024]
【The invention's effect】
Extra materials such as auxiliary muscles that restrain the hollow material can be omitted. Moreover, it became possible to install a hollow material easily.
[0025]
The hollow material unit can be installed in a state in which the upper and lower bars are arranged in the slab formwork. Further, the upper end bars can be arranged without installing the hollow material unit.
[Brief description of the drawings]
FIG. 1 shows a hollow material unit according to a first embodiment, wherein (1) is a plan view and (2) is an enlarged front view.
FIG. 2 is a hollow material unit according to the first embodiment, wherein (1) is a plan view and (2) is an enlarged front view.
FIG. 3 shows a hollow material unit according to a second embodiment, wherein (1) is a plan view and (2) is a front view.
FIGS. 4A and 4B show a method of attaching a connecting material on the top and bottom of the hollow material in the hollow material unit according to the second embodiment. FIG. 4A is a front view of attaching a binding wire to the connecting material. ) Is a front view of the binding wire inserted into the through hole of the hollow material.
FIG. 5 shows a hollow material unit according to a third embodiment, wherein (1) is a plan view, (2) is a cross-sectional view of the hollow material, and (3) is a cross-sectional view of the upper hollow material.
FIG. 6 is a plan view of a hollow material unit according to a fourth embodiment.
FIGS. 7A and 7B show the installation method of the hollow material unit according to the first embodiment, wherein FIG. 7A is a cross-sectional view in which upper and lower bars are arranged in a slab form, and FIG. Sectional drawing in which the material unit is pushed into the upper end line, (3) is a sectional view in which the hollow material unit is installed in the installation space.
FIGS. 8A and 8B show a method for installing a hollow material unit according to a second embodiment, wherein FIG. 8A is a cross-sectional view in which upper and lower bars are arranged in a slab form, and FIG. Sectional drawing in which the material unit is pushed into the upper end line, (3) is a sectional view in which the hollow material unit is installed in the installation space.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 9, 13, 18, 25 Hollow material unit 2 Hollow material 3 Embedding anchor 4 Connecting material 5, 24 Protrusion 6 Fitting groove 7 Intersection 8 Retaining stopper 10 Through hole 11, 16 Bundling wire 12 Lower fitting Groove 14 Upper hollow material 15 Reinforcement plate 17 Lower hollow material 19 Slab formwork 20a Top bar 20b Bottom bar 21 Spacer 22 Installation space 23 Grid part 26 Cut

Claims (8)

A grid-like or linear connecting material placed on the top of the hollow material arranged at appropriate intervals in the vertical and horizontal directions is attached with an embedded anchor with the lower part inserted into the hollow material, and is prevented from coming off at the lower part of the embedded anchor A hollow material unit provided with a reversal. The lattice-like or linear connecting material placed on the top of the hollow material arranged at appropriate intervals in the vertical and horizontal directions is bound to the reinforcing plate embedded in the hollow material with a binding wire and fixed to the hollow material. A featured hollow material unit. The lattice-like or linear connecting material installed on the upper and lower surfaces of the hollow material arranged at appropriate intervals in the vertical and horizontal directions is bound by a binding wire penetrating the hollow material and fixed to the hollow material. A hollow material unit. The hollow material unit according to claim 1, wherein the hollow material has a capsule shape or a spherical shape. The hollow material unit according to claim 1, wherein the joining material is a welded wire mesh. A hollow material unit formed by integrally connecting a lattice-like or linear connecting material disposed at the top of a hollow material arranged at appropriate intervals in the vertical and horizontal directions and a protrusion protruding from the lower side surface, An installation method for a hollow material unit, wherein the hollow material unit is installed between an upper end bar and a lower end bar while being pushed into a lattice portion of an upper end bar arranged in a slab form and deforming the protrusion by the upper end bar. 7. The method for installing a hollow material unit according to claim 6, wherein the projection is cut vertically at the center. 7. The method for installing a hollow material unit according to claim 6, wherein the protrusion is formed integrally, and a cut for cutting is provided in the central portion.

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